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Sarnia, ON — 3 hour detailed weather forecast


ON, Canada » Sarnia


Forecast for today, Wednesday, February 18, 2026
Detailed forecast - 3 hours intervals

01:00

Overcast

feels like: -4°
Overcast
Relative humidity: 94%, pressure: 742 mm
Precipitations: 0.2 mm
Wind: 11 km/h, east
04:00

Light showers
+1°
feels like: +-4°
Light showers
Relative humidity: 93%, pressure: 740 mm
Precipitations: 0.5 mm
Wind: 14 km/h, southeast
07:00

Rain
+1°
feels like: +-4°
Rain
Relative humidity: 92%, pressure: 738 mm
Precipitations: 2.3 mm
Wind: 18 km/h, southeast
10:00

Rain
+2°
feels like: +-3°
Rain
Relative humidity: 88%, pressure: 736 mm
Precipitations: 2.2 mm
Wind: 22 km/h, southeast
13:00

Rain
+3°
feels like: +-1°
Rain
Relative humidity: 88%, pressure: 735 mm
Precipitations: 2.9 mm
Wind: 18 km/h, southeast
16:00

Light showers
+5°
feels like: +1°
Light showers
Relative humidity: 84%, pressure: 735 mm
Precipitations: 0.1 mm
Wind: 14 km/h, southeast
19:00

A mix of sun and cloud
+4°
feels like: +0°
A mix of sun and cloud
Relative humidity: 86%, pressure: 736 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southeast
22:00

Mainly sunny
+1°
feels like: +-3°
Mainly sunny
Relative humidity: 89%, pressure: 738 mm
Precipitations: 0.0 mm
Wind: 11 km/h, southeast
01:00

A mix of sun and cloud

feels like: -4°
A mix of sun and cloud
Relative humidity: 92%, pressure: 740 mm
Precipitations: 0.0 mm
Wind: 11 km/h, southeast